Erwin Grosche
type: MusicGroup
genre: krautrock
popularity: 3
followers: 266
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/71cf9268-d56b-471b-b0f1-da8f7f9c6fde.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/71cf9268-d56b-471b-b0f1-da8f7f9c6fde
additional property: OTSTimestamp
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  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf650bbfb378155a61cf753544b6b4344b28019d77dba63927aeb15d4a4c6404e","name":"Erwin Grosche","registered_at":"2026-06-17T05:20:26Z","symbol":"NIM1293537","token_address":"0x1ecfdb168242350200b9c455c9ad1b3670748ba6","type":"artist","uuid":"71cf9268-d56b-471b-b0f1-da8f7f9c6fde"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf650bbfb378155a61cf753544b6b4344b28019d77dba63927aeb15d4a4c6404e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71cf9268-d56b-471b-b0f1-da8f7f9c6fde.json and https://artists.proofprofile.net/proofs/artist/71cf9268-d56b-471b-b0f1-da8f7f9c6fde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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  type: MusicAlbum
  date published: 2013-05-10
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  date published: 2023-02-15
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-10-01
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-10-17
album: Himmelsgeschichten
  type: MusicAlbum
  date published: 2023-10-20